1// SPDX-License-Identifier: ISC
2/*
3 * Copyright (c) 2014 Broadcom Corporation
4 */
5#include <linux/init.h>
6#include <linux/of.h>
7#include <linux/of_irq.h>
8
9#include <defs.h>
10#include "debug.h"
11#include "core.h"
12#include "common.h"
13#include "of.h"
14
15void brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
16		    struct brcmf_mp_device *settings)
17{
18	struct brcmfmac_sdio_pd *sdio = &settings->bus.sdio;
19	struct device_node *root, *np = dev->of_node;
20	int irq;
21	u32 irqf;
22	u32 val;
23
24	/* Set board-type to the first string of the machine compatible prop */
25	root = of_find_node_by_path("/");
26	if (root) {
27		int i, len;
28		char *board_type;
29		const char *tmp;
30
31		of_property_read_string_index(root, "compatible", 0, &tmp);
32
33		/* get rid of '/' in the compatible string to be able to find the FW */
34		len = strlen(tmp) + 1;
35		board_type = devm_kzalloc(dev, len, GFP_KERNEL);
36		strscpy(board_type, tmp, len);
37		for (i = 0; i < board_type[i]; i++) {
38			if (board_type[i] == '/')
39				board_type[i] = '-';
40		}
41		settings->board_type = board_type;
42
43		of_node_put(root);
44	}
45
46	if (!np || bus_type != BRCMF_BUSTYPE_SDIO ||
47	    !of_device_is_compatible(np, "brcm,bcm4329-fmac"))
48		return;
49
50	if (of_property_read_u32(np, "brcm,drive-strength", &val) == 0)
51		sdio->drive_strength = val;
52
53	/* make sure there are interrupts defined in the node */
54	if (!of_find_property(np, "interrupts", NULL))
55		return;
56
57	irq = irq_of_parse_and_map(np, 0);
58	if (!irq) {
59		brcmf_err("interrupt could not be mapped\n");
60		return;
61	}
62	irqf = irqd_get_trigger_type(irq_get_irq_data(irq));
63
64	sdio->oob_irq_supported = true;
65	sdio->oob_irq_nr = irq;
66	sdio->oob_irq_flags = irqf;
67}
68